Hydrant.



D. P. O'BRIEN. HYDRANT. APPLICATION FILED APR. 24. 1905.

Patented Dec. 8, 1908.

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D. F. O'BRIEN.

HYDRANT. APPLICATION FILED APR.24.1905.

Patented Dec. 8, 1908.

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UNITED STATES DENIS FRANCIS OBRIEN, OF NEWARK, NEW JERSEY.

HYDRANT.

Specification of Letters Patent.

Patented Dec. 8, 1908.

Original application filed June 21, 1904, Serial No. 213,454. Divided and this application filed April 24, 1905.

Serial No. 257,264.

To all whom it may concern:

Be it known that I, DENIs F. OBRIEN, a citizen of the United States, residing at N ewark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Hydrants, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The invention of this application (which is a division of an application filed by me June 21, 1904, Serial No. 213,454 patented July 18, 1905, No. 795,057) relates to improvements in hydrants of the class commonly termed fire hydrants, and particularly to a peculiar construction of nozzle or combination nozzle and valve seat for use in independent nozzle valve fire hydrants, and to the combination thereof with a valve cage, whereby such nozzles are made readily interchangeable so that a nozzle may be removed from one hydrant and applied to another, or a new nozzle readily and quickly applied to a hydrant to take the place of a nozzle removed.

As a full understanding of the present invention can best be had from a detailed description of an organization embodying the same, such description will now be given in connection with the accompanying drawings, in which- Figure lis a sectional elevation of a fire hydrant embodying the present invention. Fig. 2 is a vertical section, upon an enlarged scale, of the upper portion of the hydrant, the same being taken on the line 2 of Fig. 3. Fig. 3 is a horizontal section on the line 3 of Fig. 2. Fig. 4 is a sectional elevation, on a still larger scale, of a portion of the hydrant standpipe illustrating one of the nozzles embodying the present invention, and the outlet valve controlling the opening through said nozzle. Fig. 5 is a vertical elevat on of Fig. 4, looking toward the right of said figure.

Referring to said drawings, 1 represents the standpipe, as it is termed, of the hydrant which is provided with hose nozzles 2, 3, 4, embodying the present invention, 5 the main valve casing, and 6 the cap or hood of the hydrant. 7 represents the main valve spindle and 8 the drip valve spindle. these parts, nor the valve mechanism controlled thereby, need be described, as they form no part of the present invention, and

Neither of are, moreover, fully shown and described in my application aforesaid.

The nozzles 2, 3, 4 are all of the same construction, although they differ in size, and a description of one with the valve mechanism and valve cage coacting therewith will answer as a description of all. Selecting, therefore, the nozzle 2, it consists of a short tubular section adapted to be introduced into a corresponding opening provided in the standpipe 1 in line with a gate valve 9 movable vertically into and out of closing position with relation to the opening in the nozzle 2 by means of an endwise immovable spindle '10, the lower end of which has threaded to it a nut 11 mounted between upper and lower projections 12, 13 on the rear face of the valve 9. This nut 11 is square so as to be prevented from rotation and is loosely mounted between the projections 12, 13 so as to provide for a limited amount of play of the valve relatively to its spindle. The gate valve 9 is located in-a valve cage 14 provided with an opening in line with the nozzle opening in the standpipe and it is provided with vertical guideways 15, 16 for the reception of the side edges of the valve 9. These guideways 15, 16 and the front or outer face of the valve are preferably provided with inclined coacting portions 17, 18, which, immediately the upward or opening movement of the valve 9 is begun move said valve away from its seat, the valve being then held by the guideways 15,16 out of contact therewith throughout its upward movement and during its downward or closing movement also, and until it again arrives opposite its seat when other inclined coacting portions 19, 20 on the rear or inner face of the valve 9 and on the valve cage 14 will return it into contact with its seat. So far as the specific construction of these guideways or the valve cage and the gate valve is concerned, it forms no part of the present invention, except as these parts are combined with the peculiar construction of nozzle and valve seat shown and described. The valve cage 14 is combined with the nozzle 2 in a pcculiar way, which will now be described. The inner end of the nozzle 2, it will be observed, is, screw threaded and projects some distance beyond the inner face of the standpipe 1 'and into the opening in the valve cage 14, which opening, it will also be observed,

rate positioning of the nozzle 2 with relation to the valve 9 is insured by the provision of a stop on the nozzle which, by engagement with the standpipe, arrests the inwardsmovement of the nozzle when introduced into the opening in the standpipe and threaded into the opening in the valve cage 15!. The stop provided for this purpose consists preferably of a flange 21 adapted to enter an annular recess 22 in the standpipe 'a-nd-to engage the bottom of said recess, as

shown in Fig. 3. This stop or flange 21 and recess 22, not only serve this function of accurately positioning the nozzle 2, but also serve the function of providing a joint between the nozzle and standpipe which may be relied upon, without packing, to prevent leakage. In order to provide for the ready turning of the nozzle 2, it is provided at its outer end with a squared or polygonal portion 23 for the reception of a wrench.

The important feature of the combined nozzle and valve seat just described, and its combination with the valve cage, is that it is interchangeable with any other nozzle of the same size upon another hydrant and can be readily and quickly secured in position upon a hydrant adapted to receive it by merely introducing it into the nozzle opening in the standpipe and then turning it so as to secure it to the valve cage in line with such nozzle opening, its accurate positioning or location with reference to the valve 9 being determined by the engagement of the flange 21 with the bottom of the recess 22.

WVhat I claim is i l. Ina hydrant, the combination with a standpipe having a nozzle opening, a gate valve for said opening, a valve cage, and a removable nozzle introduced into the standpipe through said nozzle opening and held in position therein by a screw threaded connection with said valve cage, said nozzle being provided with a stop for limiting its inward movement and accurately positioning it with its inner face in seat relation to the valve, substantially as described.

2. In a hydrant, the combination with a standpipe having a nozzle opening, a gate valve for said opening, a valve cage, and a removable nozzle introduced into the standpipe through said nozzle opening and held in position therein by a screw threaded connection with said valve cage, the inner end of said nozzle projecting within said valve cage to form the seat for the valve and said nozzle being provided with a stop for limiting its inward movement and accurately positioning it with relation to the valve, substantially as described.

3. In a hydrant, the combination with a standpipe having a nozzle opening, a gate valve for said opening, a valve cage, and a removable nozzle introduced into the standpipe through said nozzle opening and held in position therein by a screw threaded connection with said valve cage, the standpipe being provided with a recess and the nozzle with a flange which when in engagement will arrest the inward movement of the nozzle and accurately position it with relation to the valve and also serve to prevent leakage between the nozzle and standpipe, substantially as described.

4. In a hydrant, the combination, with a standpipe having a nozzle opening, and a valve controlling said opening, of a nozzle removably secured within said opening in threaded engagement with the valve cage, said nozzle having a plane inner face to serve as a seat for the valve, and means insuring the proper adjustment of the nozzle within the opening and in relation to the valve.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

DENIS FRANCIS OBRIEN.

Witnesses THOMAS FRANCIS HALPIN, J. A. GRAVES. 

